Polymethylhydrosiloxane
聚(甲基氢硅氧烷)
Also known as: PMHS, Methyl hydrogen polysiloxane, Poly[oxy(methylsilylene)], Methylhydrosiloxane homopolymer, Trimethylsiloxy-terminated polymethylhydrosiloxane
Polymethylhydrosiloxane (CAS 9004-73-3) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula (CH4OSi)n and a molecular weight of 90.198 g/mol. It is also known as PMHS, Methyl hydrogen polysiloxane and Poly[oxy(methylsilylene)]. Key properties include a melting point of >177ºC(lit.), a boiling point of >177ºC(lit.), a density of 0.995 and a flash point of 121ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 9004-73-3
- Jingsj CID
- J-17725-2
- Molecular Formula
- (CH4OSi)n
- Chinese Name
- 聚(甲基氢硅氧烷)
- Molecular Weight
- 90.198 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | >177ºC(lit.) |
|---|---|
| Boiling Point | >177ºC(lit.) |
| Density | 0.995 |
| Flash Point | 121ºC |
Frequently Asked Questions
What is the CAS number of Polymethylhydrosiloxane?
The CAS number of Polymethylhydrosiloxane is 9004-73-3.
What are the molecular formula and molecular weight of Polymethylhydrosiloxane?
Polymethylhydrosiloxane has molecular formula (CH4OSi)n and molecular weight 90.198 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Polymethylhydrosiloxane (CAS 9004-73-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-17725-2 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.